Feature

Diffractive Magnifier

J. Brian Caldwell

Diffractive optical elements have a number of theoretical advantages over conventional lenses, including a negative Abbe number, highly abnormal partial dispersion, and zero petzval sum contribution. However, their use in visible light applications has to date been limited because of stray light problems. One application where this seems to be less of an issue is in visual systems such as eyepieces and magnifiers.

Publish Date: 01 May 1998